Question

Cinday has 36 meters of fencing.she plans to fence in a rectangular dog run that is 6 meters wide.

Answer 1

Perimeter (P) = 2 · Length (L) + 2 · width (w)
The amount of fencing represents the perimeter.
 P = 2L + 2w
36 = 2L + 2(6)
36 = 2L + 12
24 = 2L
12 = L